メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.105749912569 34.6228719380388, 136.103401542903 34.6238694214273, 136.10201750633 34.6224519159376, 136.102079414675 34.6224472173928, 136.103192538534 34.6218574758058, 136.103228865633 34.6217065775392, 136.103128181428 34.6215028293071, 136.103200792207 34.6211555357738, 136.103310147248 34.6209893637894, 136.103501810236 34.6209363793269, 136.10406807608 34.6211095907786, 136.104259598294 34.6209509547747, 136.104429255134 34.6207237361096, 136.104675398066 34.6211554207064, 136.105297708138 34.622257023447, 136.105633793181 34.6227383570416, 136.105749912569 34.6228719380388)) ^^http://www.opengis.net/ont/geosparql#wktLiteral